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BE763672A - REDUCED SIZE ANSWERING MACHINE - Google Patents

REDUCED SIZE ANSWERING MACHINE

Info

Publication number
BE763672A
BE763672A BE763672A BE763672A BE763672A BE 763672 A BE763672 A BE 763672A BE 763672 A BE763672 A BE 763672A BE 763672 A BE763672 A BE 763672A BE 763672 A BE763672 A BE 763672A
Authority
BE
Belgium
Prior art keywords
reduced size
answering machine
size answering
machine
reduced
Prior art date
Application number
BE763672A
Other languages
French (fr)
Inventor
K M Kingsbury
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of BE763672A publication Critical patent/BE763672A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/767—Responders; Transponders

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Burglar Alarm Systems (AREA)
BE763672A 1970-03-02 1971-03-02 REDUCED SIZE ANSWERING MACHINE BE763672A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1573070A 1970-03-02 1970-03-02

Publications (1)

Publication Number Publication Date
BE763672A true BE763672A (en) 1971-09-02

Family

ID=21773249

Family Applications (1)

Application Number Title Priority Date Filing Date
BE763672A BE763672A (en) 1970-03-02 1971-03-02 REDUCED SIZE ANSWERING MACHINE

Country Status (12)

Country Link
US (1) US3656159A (en)
JP (1) JPS5135120B1 (en)
AU (1) AU2475771A (en)
BE (1) BE763672A (en)
CA (1) CA935911A (en)
CH (1) CH531815A (en)
DE (1) DE2105413A1 (en)
FR (1) FR2081614B1 (en)
GB (1) GB1295566A (en)
IL (1) IL36082A (en)
NL (1) NL7102701A (en)
ZA (1) ZA71422B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL180046C (en) * 1977-01-26 1986-12-16 Mitsubishi Electric Corp RADAR BEACON DEVICE FOR RESCUE OPERATIONS.
US4129867A (en) * 1977-04-28 1978-12-12 Motorola Inc. Multi-pulse modulator for radar transponder
JPS58148526A (en) * 1982-02-26 1983-09-03 Mitsubishi Electric Corp Device for rescue signal
JPS6346572A (en) * 1986-08-13 1988-02-27 Toshiba Corp Retrieving device
JP2561930B2 (en) * 1987-09-22 1996-12-11 三菱電機株式会社 Radar transponder
US6529156B2 (en) * 2001-06-07 2003-03-04 Itt Defense And Electronics Self calibration of transponder apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923935A (en) * 1960-02-02 Protective system for radio beacons
US2845621A (en) * 1958-07-29 Method and apparatus for determining time delay in pulse repeaters
US2759180A (en) * 1952-05-03 1956-08-14 Raytheon Mfg Co Gate circuits
US3054072A (en) * 1958-05-23 1962-09-11 Rca Corp Square wave generator with constant start-stop characteristics
US3183441A (en) * 1961-07-12 1965-05-11 Martin Marietta Corp Transponder automatic frequency control system
US3383680A (en) * 1966-04-26 1968-05-14 Motorola Inc Multi-pulse modulator for radar transponder
US3454884A (en) * 1966-11-01 1969-07-08 Xerox Corp Duty cycle control circuit

Also Published As

Publication number Publication date
AU2475771A (en) 1972-08-03
US3656159A (en) 1972-04-11
CH531815A (en) 1972-12-15
DE2105413A1 (en) 1971-09-16
JPS5135120B1 (en) 1976-09-30
FR2081614B1 (en) 1977-06-17
GB1295566A (en) 1972-11-08
NL7102701A (en) 1971-09-06
IL36082A0 (en) 1971-06-23
FR2081614A1 (en) 1971-12-10
ZA71422B (en) 1971-11-24
CA935911A (en) 1973-10-23
IL36082A (en) 1973-07-30

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